/*
 * Copyright 2018 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.gradle.api.internal.artifacts.ivyservice.resolveengine.graph.builder;

import org.gradle.api.artifacts.ModuleIdentifier;

public interface PendingDependenciesVisitor {

    enum PendingState {
        PENDING(true),
        NOT_PENDING(false),
        NOT_PENDING_ACTIVATING(false);

        private final boolean pending;

        PendingState(boolean pending) {
            this.pending = pending;
        }

        boolean isPending() {
            return this.pending;
        }
    }

    PendingState maybeAddAsPendingDependency(NodeState node, DependencyState dependencyState);

    boolean markNotPending(ModuleIdentifier id);

    void complete();
}
